Re: MIME boundary strings

[Marc Mutz <[e-mail]>]

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On Thursday 22 August 2002 13:20, Arnt Gulbrandsen wrote:
> That's one possible strategy. There are three that I know of:
>
> a) if using quoted-printable, quote something.
> b) if using format=flowed, rewrap differently
> c) if nothing else helps, use base64 for that body-part
>
> Basically, the boundary strings should be treated like "From " or
> ".". A good MUA avoids those strings at the beginnings of lines. IMO,
> avoiding n strings isn't harder than avoiding 2.
<snip>

n strings? Just include '-' in the "From ", "." list.

But base64 and qp encoded body parts are no problem, since you just need 
to include "=_" in the boundary string, which cannot be part of a qp or 
b64 encoded stream (from rfc2046 ;-)

For 7bit or 8bit, you need to actually do something, though, if you want 
to make it perfect. But IMO,
  "=_" + base64encode( time(0) rand() rand() ) 
(ie. a time_t followed by a 64bit random number) is reasonable enough.

Marc

- -- 
Mutig warf sich die kleine Überwachungskamera zwischen Täter und Opfer!
                                        --Rena Tangens / FoeBuD e.V.
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